NCS6008 – Technical Architecture and Troubleshooting Deep Dive Osman Hashmi, Technical Leader BRKARC-2026 Agenda • Platform Introduction • System Architecture • NG XR Software Architecture • Life of a Packet and Data Path Debugging • System Troubleshooting • Commonly Used CLI, Tips and Tricks Platform Introduction Service Provider Core Network Challenges Limited Scale Exhausted 10G Networks Cost Effective 100G and beyond, towards Terabit Mobility, Video, Content Have Separate Taken Over Networks Customer Service Request Service Delivery Inability to Adapt Quickly to Dynamic Service Requests Programmable Elastic Interfaces Old Constrained New Architecture Limited Performance and Scale leads to Network Overhaul Cost Effective Elastic Core Meeting the SP Challenges • Core/peering ipv4/ipv6/MPLS capabilities • Lowest power consumption using new ASICS • Complete protocol suites and highest throughput per card • Easy operationalization (easy insertion) • Scale to traffic growth for the • Minimum maintenance windows foreseeable future • High reliability/availability • Single, multi-chassis and B2B configurations • Flexible building blocks IP/MPLS Operations Scalability and Performance OPEX Saving Top Line Impact • “GREEN” – high power efficiency • Core efficiency • Efficient multi-chassis economics • High speed / high density peering • 100G optimized for average 50% yoy • Services enablement BW growth • Common service framework • 100G packet- optical integration • Packet-DWDM integration • Packet- to photons management Cisco Routing Technology Cisco NPU NG Software Optics Custom Silicon Family • Evolved Cisco IOS XR • CMOS Photonics and • Integration, Functionality, Coherent IPoDWDM • Integrated virtualization Performance Technologies • High performance with features • Service-enabled • 100 Gb CPAK investment • Hardware support for ZPL/ZTL • ZPL/ZTL capability • Low-cost 100 Gb interconnect • Optimized density and power New Cisco Network Processor Family Integration and Functionality and Flexibility Low Power Optimization Consumption • High-scale, • Fully programmable • High integration multiservice with 336 on-chip (MAC, NPUs, OTN) IPv4/IPv6/MPLS packet processors provides low power forwarding • Support for a wide consumption and • LSR for label range of Ethernet reduced footprint switching interfaces • Helps enable highest • Integrated Ethernet (10 GE, 40 GE, 100 power efficiency in MACs and OTN GE) terms of Watts and framers • Support for OTN Gbps in the industry • ZPL/ZTL smart framing support NCS6008 Linecard and Fabric Chassis NCS 6008 LCC NCS Fabric Chassis Functionality High-end transport router Switch fabric expansion shelves Maximum Capacity 1 Tb line card, 8 Tb/LCC; 128 Tb per system 40 Tb per chassis; 12 fabric cards Hardware Dimension Full rack: 23 in. integrated rack, 84x23.6x42” Full rack: 23 in. integrated rack; 84x23.6x42 in. (H x W x D) Fabric Cards 5 plus 1 Max. 12 Line Cards 10x10 0GE (Flex), 20x40 GE (Flex), 60x10 GE 1 Tbpsmulti-service (M/S), 1 Tbpslabel switching Forwarding Capability (LSR) B2B / Multi-chassis with FCC Yes/yes (maximum 16 plus 4) N/A Typical Power (FCS) 14.1 KW (SC), 15.5 KW (MC) 7.4 KW Power Entry (FCS) 9 plus 9 DC PEMs, 6 plus 6 AC PEMs 8 plus 8 DC PEMs, 6 plus 6 AC PEMs System Architecture